Battle
A Chinese operational victory destroys one pocket while the rest of X Corps escapes.
Military history
Chosin is neither simply a heroic retreat nor the total destruction of X Corps. The Chinese 9th Army Group severs communications and destroys Task Force Faith as a military organization on the east bank. To the west and south, however, UN forces retain perimeters, a base at Hagaru-ri, combined-arms firepower, and a road that can be reopened in stages. Withdrawal becomes a succession of battles to unite the pockets, retake heights, and cross the passes. The axes of attack are established; sources differ over the attribution of some Chinese divisions, and those disagreements remain explicit.
The reinforced 1st Marine Division advances toward the reservoir as part of X Corps’ autumn offensive. Available reports already note Chinese movement, but estimates of likely action remain overly optimistic. An official Chinese synthesis describes the intention to exploit enemy dispersion, followed by the general attack on 27 November. This institutional source establishes an intention and narrative axis, not perfect execution of the plan.
The reservoir stretches between valleys and heights; the Hungnam–Hagaru–Yudam-ni road is narrow, winding, and lined with fragile bridges. Units can hold separate perimeters, but reuniting them depends on this single line of communication.
Freezing conditions slow engineering, vehicles, medical care, and supply. Cold does not decide the outcome by itself; it chiefly amplifies the cost of any road interruption and makes air evacuation and convoy cover even more important.
Sources describe the same attack axes without assigning divisions identically everywhere. Frozen Chosin’s order-of-battle table distinguishes the 20th Army (58th, 59th, 60th) from the 27th Army (79th, 80th, 81st); some tables add the 89th as an attached division. Its narrative places the 27th Army’s 80th on the east bank and the 20th on the MSR axis. In the cited passage, the official U.S. Army history identifies the 79th and 89th at Yudam-ni and the 80th against Task Force MacLean/Faith without assigning it to the 20th Army. The CGSC preserves disagreements in tactical identification; they do not justify turning every contact into certainty.
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Military history
Part 1, pp. 1–66 : rapport de situation, opérations et cartes du 27 novembre au 10 décembre 1950.
Contemporary reports on Chinese intervention, withdrawal orders, unit situations, and intelligence limits.
View ↗PDF pp. 15–19 : arrivée incomplète du 31st RCT, attaques de la 80e division, capture de MacLean, prise de commandement par Faith, relèves échouées, sortie du 1er décembre, dissolution de la colonne et survivants ; pp. 21–26 : retrait vers Hungnam et évacuation de X Corps ; pp. 27–29 : offensive chinoise du 26 décembre et chute de Séoul les 3–4 janvier 1951.
Army attribution of the 79th/89th Divisions at Yudam-ni and the 80th against Task Force MacLean/Faith, the role of Task Force Faith, Hungnam evacuation, and the strategic sequence after Chosin.
View ↗HTML, section « High Level Command Conference », puis « Rescue of U. S. Army Wounded » : contrôle opérationnel, sortie, dislocation, 670 puis environ 1 050 survivants et 385 aptes ; ch. XII–XIV, pp. imprimées 249–333 : Yudam-ni, Hagaru-ri, Koto-ri et Funchilin, avec le passage sur les opérations du 6 au 11 décembre attribuant l’essentiel de l’opposition au sud à la 26e armée ; section « Losses Sustained by the Enemy » : 4 418 pertes de combat Marines et estimation chinoise de 37 500 explicitement jugée peu fiable ; appendices D–G, pp. 379–399 : effectifs et ordre de bataille.
Movement sequence of the 1st Marine Division, disintegration and rescue of Task Force Faith, combined-arms support, Funchilin crossing, the 26th Army as the main opposition in the south from 6 to 11 December, casualties, and the Chinese order of battle seen from the Marine system; its service framing is explicitly bounded.
View ↗PDF pp. 19–24, imprimées pp. 52–56 : tableau d’ordre de bataille (20e : 58e/59e/60e ; 27e : 79e/80e/81e ; 89e signalée comme attachée dans certaines tables), 80e de la 27e sur la rive est, 79e/81e autour de Yudam-ni et 59e vers Toktong ; PDF p. 38, imprimée p. 71 : la 81e renforce la 80e contre Task Force Faith le 30 novembre ; pp. 31–39, imprimées pp. 66–74 : sortie et évacuation.
Marine version of the disputed order of battle, assignment of the 80th to the 27th Army, reinforcement by the 81st from 30 November, and precise functions of Fox/2-7, C/1-7, RCT-1, and RCT-5/RCT-7 units.
View ↗PDF pp. 49–50, section sur l’ordre de bataille : secteurs ouest/est et remarque sur l’accès aux archives chinoises ; PDF pp. 69–71, pp. imprimées 63–65 : ordre de sortie, 1/7, 3/5, 3/7 et Fox/2-7 ; PDF p. 70, p. imprimée 64 : jonction du 2 décembre.
Modern reconstruction of axes and checks on tactical roles during the breakout; a source of caution over Chinese identifications.
View ↗Sections datées du 23 octobre et des 5–6 novembre : préparation du 9e groupe d’armées, ordre d’attirer l’adversaire vers Koto-ri–Changjin et objectif de détruire deux régiments de Marines ; passages des 27–30 novembre : offensive, isolement des poches et attaque du 31st RCT ; paragraphes sur l’insuffisance des vêtements d’hiver et du soutien logistique.
Chinese institutional intention and perspective, acknowledgment of logistical constraints, and claim of the 31st RCT’s destruction; this partisan source is not used alone to fix casualties or every divisional attribution.
View ↗Légende et carte de la photographie : trajet des forces de l’ONU du 6 au 11 décembre 1950 et ordre de grandeur d’environ 30 000 hommes en sortie vers Hungnam.
Cartographic landmarks for the breakout to Hungnam and checks on the map’s operational scale.
View ↗PDF p. 34, page imprimée 30, de « In fact, just ten years » à « effectively destroyed as a military organization » : environ 3 000 soldats américains et sud-coréens, plus de 1 000 tués, capturés ou disparus, 1 500 évacués blessés, quelques centaines au bataillon provisoire et perte de tous les véhicules, pièces et armes collectives ; chiffres repris d’Appleman, East of Chosin, pp. 300 et 303.
U.S. and South Korean composition, alternative scope for Task Force Faith losses, destruction as a military organization, and material losses; an institutional secondary study explicitly derived from Appleman for this passage.
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